US4362266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-glued tapered tray
Assignee: WestRock Minnesota Corp
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Filing: 1981-03-02
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Granted: 1982-12-07
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Expires: 2001-03-02
Abstract
Abstract A glueless, tapered sidewall tray erected from a unitary blank of paperboard. The tray has a hexagonal base with trapezoidal upwardly and outwardly extending printed side panels hingedly connected to the base sides. Alternate first side panels have pairs of side flaps on opposite side edges with tabs on the upper edges of the side flaps remote from the connection of the flap to its associated first side panel. Inner flaps on second side panels are hingedly connected thereto at their tops and extend downwardly to a lower central slot which interrupts the hinged connections of the second side panels with the base sides. The inner flaps have tabs which lock in said lower central slots. The tabs on the upper edges of the side flaps of the first side panels are received in top central slots which interrupt the hinge line between the second side panels and their associated inner flaps to secure adjacent first and second side panels. A hexagonal lid and closure panels may be attached to the upper edges of the first side panels.
Inventors
- 👤 George P. Webinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:54
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/22; B65D5/2014; B65D5/2033; B65D5/2038; B65D5/2047; B65D5/42; B65D5/64; B65D5/66; B65D5/6626; B65D5/665; B65D5/6655; B65D5/6658
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
319 words
A tray formed from sheet stock, said tray comprising: (a) a polygonal base having a plurality of side edges; (b) a plurality of trapezoidal first side panels on said tray, said first side panels being foldably connected along the shorter of their parallel edges to respective side edges of said base, said first side panels all extending upwardly and outwardly from said side edges of said base to form a top of said tray which is the same polygonal shape as said base but larger in area than the area of said base; (c) a plurality of second trapezoidal side panels foldably connected to the upper edge of each of alternate ones of said first side panels along the longer parallel edge of said first and second side panels, said second side panels being folded down adjacent said respective alternate ones of said first side panels to overlie the latter, each of said second side panels being provided with a projecting tab at the shorter of its parallel edges, with said projecting tabs being received in cooperating slots formed in the fold connections between said base and said alternate ones of said first side panels to retain said second side panels in said overlying positions; (d) means forming a medial slot in the fold connections between said first and second side panels; and (e) pairs of side flaps foldably connected one to each side edge of intermediate ones of said first side panels, the latter of which are disposed intermediate said alternate ones of said first side panels; each of said side flaps being sandwiched between the adjacent pair of said alternate ones of said first side panels and said second side panels, and each of said side flaps including a locking tab on its upper edge with said locking tabs engaging said medial slots to retain all of said side panels in their upwardly and outwardly extending positions.
Claim 2
Dependent Claim
319 words
A tray formed from sheet stock, said tray comprising: (a) a polygonal base having a plurality of side edges; (b) a plurality of trapezoidal first side panels on said tray, said first side panels being foldably connected along the shorter of their parallel edges to respective side edges of said base, said first side panels all extending upwardly and outwardly from said side edges of said base to form a top of said tray which is the same polygonal shape as said base but larger in area than the area of said base; (c) a plurality of second trapezoidal side panels foldably connected to the upper edge of each of alternate ones of said first side panels along the longer parallel edge of said first and second side panels, said second side panels being folded down adjacent said respective alternate ones of said first side panels to overlie the latter, each of said second side panels being provided with a projecting tab at the shorter of its parallel edges, with said projecting tabs being received in cooperating slots formed in the fold connections between said base and said alternate ones of said first side panels to retain said second side panels in said overlying positions; (d) means forming a medial slot in the fold connections between said first and second side panels; and (e) pairs of side flaps foldably connected one to each side edge of intermediate ones of said first side panels, the latter of which are disposed intermediate said alternate ones of said first side panels; each of said side flaps being sandwiched between the adjacent pair of said alternate ones of said first side panels and said second side panels, and each of said side flaps including a locking tab on its upper edge with said locking tabs engaging said medial slots to retain all of said side panels in their upwardly and outwardly extending positions.
Claim 3
Dependent Claim
14 words
The tray of claim 1, wherein said base has at least six side edges.
Claim 4
Dependent Claim
82 words
The tray of claim 2, further comprising a lid foldably connected to an upper edge of one of said intermediate ones of said first side panels, said lid corresponding in shape and size to said top of said tray, said lid further comprising a plurality of locking tabs foldably connected to and projecting from alternate ones of the side edges of said lid, said tabs being insertable into said medial slots to retain said lid in a closed position on said tray.
Claim 5
Dependent Claim
242 words
A sheetstock blank for forming a tapered side wall tray, said blank comprising: (a) a polygonal base panel having side edges; (b) a plurality of first trapezoidal side wall panels foldably connected, one to each side edge of said base panel along the shorter of the two parallel side edges of said first side wall panels; (c) means forming a retention slot at the fold connections between said base panel and alternate ones of said first side wall panels; (d) a plurality of second trapezoidal side wall panels foldably connected one to each of said alternate ones of said first side wall panels along the longer of the parallel edges of both of said alternate ones of said first side wall panels and said second side wall panels, each of said second side wall panels being substantially the same height as said first side wall panels and including a retention tab formed on the shorter of its parallel edges; (e) means forming a locking slot at each of the fold connections between said alternate ones of said first side wall panels and said second side wall panels; (f) a plurality of side flaps one foldably connected to each side edge of intermediate ones of said first side wall panels, each of said side flaps having one free side edge and a free top edge; and (g) means forming a locking tab on said free top edge of each of said side flaps.
Claim 6
Dependent Claim
242 words
A sheetstock blank for forming a tapered side wall tray, said blank comprising: (a) a polygonal base panel having side edges; (b) a plurality of first trapezoidal side wall panels foldably connected, one to each side edge of said base panel along the shorter of the two parallel side edges of said first side wall panels; (c) means forming a retention slot at the fold connections between said base panel and alternate ones of said first side wall panels; (d) a plurality of second trapezoidal side wall panels foldably connected one to each of said alternate ones of said first side wall panels along the longer of the parallel edges of both of said alternate ones of said first side wall panels and said second side wall panels, each of said second side wall panels being substantially the same height as said first side wall panels and including a retention tab formed on the shorter of its parallel edges; (e) means forming a locking slot at each of the fold connections between said alternate ones of said first side wall panels and said second side wall panels; (f) a plurality of side flaps one foldably connected to each side edge of intermediate ones of said first side wall panels, each of said side flaps having one free side edge and a free top edge; and (g) means forming a locking tab on said free top edge of each of said side flaps.
Claim 7
Dependent Claim
65 words
The blank of claim 4, further comprising a polygonal lid panel foldably connected to a top edge of one of said intermediate first side wall panels, said lid panel being the same shape as but larger in area than said polygonal base panel, and said lid panel including a plurality of locking tabs formed on alternate ones of the side edges of said lid panel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |